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External validation and improvement of an algorithm that identifies multiple sclerosis relapses in the French national healthcare claims database.

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Title: External validation and improvement of an algorithm that identifies multiple sclerosis relapses in the French national healthcare claims database.
Authors: Carcaillon-Bentata L; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France. Electronic address: laure.carcaillon-bentata@u-bordeaux.fr., Abouelfath A; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France., Lignot-Maleyran S; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France., Lassalle R; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France., Jové J; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France., Blin P; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France., Berger E; CHU de Besançon, Service de Neurologie, Besançon, France., Bourre B; CHU de Rouen, Departement of Neurology, Rouen, France., Camdessanche JP; CHU de Saint-Étienne, Hôpital Nord, Department of Neurology, Saint Etienne, France., Casez O; CHU Grenoble Alpes, Department of Neurology, Neurology MS Clinic Grenoble, Grenoble Alpes university hospita, Grenoble, France; TIMC, T-RAIG (Translational Research in Autoimmunity and Inflammation Group), Université Grenoble Alpes, Grenoble, France., Ciron J; CHU de Toulouse, CRC-SEP, department of Neurology, Toulouse, France; Université Toulouse III, Infinity, INSERM UMR1291 - CNRS UMR5051, Toulouse, France., David T; CHU de la Martinique, Department of Neurology, Fort-de-France, France., De Seze J; CHU de Strasbourg, Department of Neurology and Clinical Investigation Center, CIC 1434, INSERM 1434, Strasbourg, France., Defer G; CHU de Caen, MS expert centre, Department of Neurology, avenue de la Côte-de-Nacre, Normandy University, Caen, France., Doghri I; CHU de Tours, Hôpital Bretonneau, CRC SEP and department of neurology, Tours, France., Santos AD; CHU La Milétrie, Hôpital Jean Bernard, Department of neurology et Centre d'Investigation Clinique, CIC INSERM 1402, Poitiers, France., Hankiewicz K; Department of neurology, Hôpital Pierre Delafontaine, Centre Hospitalier de Saint-Denis, Saint Denis, France., Heinzlef O; Hôpital de Poissy, Departement of Neurology, Poissy, France., Labauge P; CHU de Montpellier, MS Unit, F-34295 Montpellier Cedex 5, France; University of Montpellier (MUSE), Montpellier, France., Page EL; CHU Pontchaillou, CIC1414 INSERM, Rennes, France., Lebrun-Frenay C; Neurology, UR2CA_URRIS, Centre Hospitalier Universitaire Pasteur2, Université Nice Côte d'Azur, Nice, France., Leclancher A; GHH Du Havre, Department of Neurology, Le Havre, France., Louapre C; Sorbonne University, Department of Neurology, Pitié Salpêtrière Hospital, APHP, CIC neurosciences, Paris Brain Institute, Paris, France., Manchon E; CH de Gonesse, Department of neurology, Gonesse, France., Mathey G; Université de Lorraine, CHRU-Nancy, Neurology, Nancy, France; Université de Lorraine, Inserm, INSPIIRE, Nancy, France., Montcuquet A; CH Brive, Department of Neurology, Brive, France., Papeix C; Foundation Adolphe de Rothschild Hospital, Department of Neurology, Paris, France., Pelletier J; Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, Marseille, France., Pottier C; Hôpital NOVO, site Pontoise, Department of Neurology, Pontoise, France., Ruet A; Service de neurologie et maladies inflammatoires du système nerveux central, CRC SEP, CHU de Bordeaux, Bordeaux, France; INSERM U1215, Neurocentre Magendie, Université de Bordeaux, Bordeaux, France., Sarov-Riviere M; APHP, Hôpital Kremlin Bicêtre, Deparement of Neurology, Le Kremlin Bicêtre, France., Vukusic S; Département Sclérose en plaques, pathologies de la myéline et neuro-inflammation; Fondation Eugène Devic EDMUS sur la SEP; Hôpital Neurologique Pierre Wertheimer - Hospices Civils de Lyon, Lyon, France; Observatoire Français de la Sclérose en Plaques, Centre de Recherche en Neurosciences de Lyon, INSERM 1028 et CNRS UMR 5292, Lyon, France., Magy L; CHU de Limoges, Hôpital Dupuytren, Department of Neurology, Limoges, France., Moulin M; CHU de Reims, CRC-SEP, Department of neurology, Reims, France., Brochet B; U1215 INSERM, University of Bordeaux, Bordeaux, France., Casey R; Univ Lyon, Université Claude Bernard Lyon 1, Hospices Civils de Lyon, Fondation EDMUS, OFSEP, Centre de Recherche en Neurosciences de Lyon F-69000 Lyon, France; Hospices Civils de Lyon, Service de Neurologie, sclérose en plaques, pathologies de la myéline et neuro-inflammation, F-69677 Bron, France; Observatoire Français de la Sclérose en Plaques, Centre de Recherche en Neurosciences de Lyon, INSERM 1028 et CNRS UMR 5292, F-69003 Lyon, France; EUGENE DEVIC EDMUS Foundation against multiple sclerosis, state-approved foundation, F-69677 Bron, France., Leray E; Univ Rennes, EHESP, CNRS, Inserm, ARENES UMR 6051, RSMS U 1309, Rennes, France.
Corporate Authors: OFSEP Investigators
Source: Multiple sclerosis and related disorders [Mult Scler Relat Disord] 2026 Jul; Vol. 111, pp. 107209. Date of Electronic Publication: 2026 Apr 24.
Publication Type: Journal Article; Validation Study; Review
Journal Info: Publisher: Elsevier B. V Country of Publication: Netherlands NLM ID: 101580247 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2211-0356 (Electronic) Linking ISSN: 22110348 NLM ISO Abbreviation: Mult Scler Relat Disord Subsets: MEDLINE
Database: MEDLINE Ultimate
FullText Text:
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: External validation and improvement of an algorithm that identifies multiple sclerosis relapses in the French national healthcare claims database.
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  Data: <searchLink fieldCode="AU" term="%22Carcaillon-Bentata+L%22">Carcaillon-Bentata L</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France. Electronic address: laure.carcaillon-bentata@u-bordeaux.fr.<br /><searchLink fieldCode="AU" term="%22Abouelfath+A%22">Abouelfath A</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Lignot-Maleyran+S%22">Lignot-Maleyran S</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Lassalle+R%22">Lassalle R</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Jové+J%22">Jové J</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Blin+P%22">Blin P</searchLink>; Bordeaux PharmacoEpi, INSERM CIC-P1401, Univ. Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Berger+E%22">Berger E</searchLink>; CHU de Besançon, Service de Neurologie, Besançon, France.<br /><searchLink fieldCode="AU" term="%22Bourre+B%22">Bourre B</searchLink>; CHU de Rouen, Departement of Neurology, Rouen, France.<br /><searchLink fieldCode="AU" term="%22Camdessanche+JP%22">Camdessanche JP</searchLink>; CHU de Saint-Étienne, Hôpital Nord, Department of Neurology, Saint Etienne, France.<br /><searchLink fieldCode="AU" term="%22Casez+O%22">Casez O</searchLink>; CHU Grenoble Alpes, Department of Neurology, Neurology MS Clinic Grenoble, Grenoble Alpes university hospita, Grenoble, France; TIMC, T-RAIG (Translational Research in Autoimmunity and Inflammation Group), Université Grenoble Alpes, Grenoble, France.<br /><searchLink fieldCode="AU" term="%22Ciron+J%22">Ciron J</searchLink>; CHU de Toulouse, CRC-SEP, department of Neurology, Toulouse, France; Université Toulouse III, Infinity, INSERM UMR1291 - CNRS UMR5051, Toulouse, France.<br /><searchLink fieldCode="AU" term="%22David+T%22">David T</searchLink>; CHU de la Martinique, Department of Neurology, Fort-de-France, France.<br /><searchLink fieldCode="AU" term="%22De+Seze+J%22">De Seze J</searchLink>; CHU de Strasbourg, Department of Neurology and Clinical Investigation Center, CIC 1434, INSERM 1434, Strasbourg, France.<br /><searchLink fieldCode="AU" term="%22Defer+G%22">Defer G</searchLink>; CHU de Caen, MS expert centre, Department of Neurology, avenue de la Côte-de-Nacre, Normandy University, Caen, France.<br /><searchLink fieldCode="AU" term="%22Doghri+I%22">Doghri I</searchLink>; CHU de Tours, Hôpital Bretonneau, CRC SEP and department of neurology, Tours, France.<br /><searchLink fieldCode="AU" term="%22Santos+AD%22">Santos AD</searchLink>; CHU La Milétrie, Hôpital Jean Bernard, Department of neurology et Centre d'Investigation Clinique, CIC INSERM 1402, Poitiers, France.<br /><searchLink fieldCode="AU" term="%22Hankiewicz+K%22">Hankiewicz K</searchLink>; Department of neurology, Hôpital Pierre Delafontaine, Centre Hospitalier de Saint-Denis, Saint Denis, France.<br /><searchLink fieldCode="AU" term="%22Heinzlef+O%22">Heinzlef O</searchLink>; Hôpital de Poissy, Departement of Neurology, Poissy, France.<br /><searchLink fieldCode="AU" term="%22Labauge+P%22">Labauge P</searchLink>; CHU de Montpellier, MS Unit, F-34295 Montpellier Cedex 5, France; University of Montpellier (MUSE), Montpellier, France.<br /><searchLink fieldCode="AU" term="%22Page+EL%22">Page EL</searchLink>; CHU Pontchaillou, CIC1414 INSERM, Rennes, France.<br /><searchLink fieldCode="AU" term="%22Lebrun-Frenay+C%22">Lebrun-Frenay C</searchLink>; Neurology, UR2CA_URRIS, Centre Hospitalier Universitaire Pasteur2, Université Nice Côte d'Azur, Nice, France.<br /><searchLink fieldCode="AU" term="%22Leclancher+A%22">Leclancher A</searchLink>; GHH Du Havre, Department of Neurology, Le Havre, France.<br /><searchLink fieldCode="AU" term="%22Louapre+C%22">Louapre C</searchLink>; Sorbonne University, Department of Neurology, Pitié Salpêtrière Hospital, APHP, CIC neurosciences, Paris Brain Institute, Paris, France.<br /><searchLink fieldCode="AU" term="%22Manchon+E%22">Manchon E</searchLink>; CH de Gonesse, Department of neurology, Gonesse, France.<br /><searchLink fieldCode="AU" term="%22Mathey+G%22">Mathey G</searchLink>; Université de Lorraine, CHRU-Nancy, Neurology, Nancy, France; Université de Lorraine, Inserm, INSPIIRE, Nancy, France.<br /><searchLink fieldCode="AU" term="%22Montcuquet+A%22">Montcuquet A</searchLink>; CH Brive, Department of Neurology, Brive, France.<br /><searchLink fieldCode="AU" term="%22Papeix+C%22">Papeix C</searchLink>; Foundation Adolphe de Rothschild Hospital, Department of Neurology, Paris, France.<br /><searchLink fieldCode="AU" term="%22Pelletier+J%22">Pelletier J</searchLink>; Aix Marseille Univ, APHM, Hôpital de la Timone, Pôle de Neurosciences Cliniques, Service de Neurologie, Marseille, France.<br /><searchLink fieldCode="AU" term="%22Pottier+C%22">Pottier C</searchLink>; Hôpital NOVO, site Pontoise, Department of Neurology, Pontoise, France.<br /><searchLink fieldCode="AU" term="%22Ruet+A%22">Ruet A</searchLink>; Service de neurologie et maladies inflammatoires du système nerveux central, CRC SEP, CHU de Bordeaux, Bordeaux, France; INSERM U1215, Neurocentre Magendie, Université de Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Sarov-Riviere+M%22">Sarov-Riviere M</searchLink>; APHP, Hôpital Kremlin Bicêtre, Deparement of Neurology, Le Kremlin Bicêtre, France.<br /><searchLink fieldCode="AU" term="%22Vukusic+S%22">Vukusic S</searchLink>; Département Sclérose en plaques, pathologies de la myéline et neuro-inflammation; Fondation Eugène Devic EDMUS sur la SEP; Hôpital Neurologique Pierre Wertheimer - Hospices Civils de Lyon, Lyon, France; Observatoire Français de la Sclérose en Plaques, Centre de Recherche en Neurosciences de Lyon, INSERM 1028 et CNRS UMR 5292, Lyon, France.<br /><searchLink fieldCode="AU" term="%22Magy+L%22">Magy L</searchLink>; CHU de Limoges, Hôpital Dupuytren, Department of Neurology, Limoges, France.<br /><searchLink fieldCode="AU" term="%22Moulin+M%22">Moulin M</searchLink>; CHU de Reims, CRC-SEP, Department of neurology, Reims, France.<br /><searchLink fieldCode="AU" term="%22Brochet+B%22">Brochet B</searchLink>; U1215 INSERM, University of Bordeaux, Bordeaux, France.<br /><searchLink fieldCode="AU" term="%22Casey+R%22">Casey R</searchLink>; Univ Lyon, Université Claude Bernard Lyon 1, Hospices Civils de Lyon, Fondation EDMUS, OFSEP, Centre de Recherche en Neurosciences de Lyon F-69000 Lyon, France; Hospices Civils de Lyon, Service de Neurologie, sclérose en plaques, pathologies de la myéline et neuro-inflammation, F-69677 Bron, France; Observatoire Français de la Sclérose en Plaques, Centre de Recherche en Neurosciences de Lyon, INSERM 1028 et CNRS UMR 5292, F-69003 Lyon, France; EUGENE DEVIC EDMUS Foundation against multiple sclerosis, state-approved foundation, F-69677 Bron, France.<br /><searchLink fieldCode="AU" term="%22Leray+E%22">Leray E</searchLink>; Univ Rennes, EHESP, CNRS, Inserm, ARENES UMR 6051, RSMS U 1309, Rennes, France.
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